Alvarion BreezeACCESS VL 5.4 System Manual page 96

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overhead and an excessive rate of power level changes at the SUs. High
values for this parameter increase the time it will take until the SUs reach
optimal transmit power level.
Available values: 0 to 3600 seconds.
Default value: 120 seconds.
ATPC Power Level Step
The ATPC Power Level Step parameter defines the step size to be used by
the SUs for incrementing/decrementing the Current Transmit Power after
receiving a power-up/power-down message. If the distance between the
value of the Current Transmit Power and the desired range is smaller
than the step size, the power-up/power-down message will include the
specific step value required for this condition.
Valid range: 1-10 (dB)
Default value: 1 (dB)
ATPC Parameters in SU
ATPC Option
The ATPC Option enables or disable the Automatic Transmit Power Control
(ATPC) algorithm. The parameter takes effect immediately. However, when
changed from Enable to Disable, the transmit power level shall remain at
the last Current Transmit Power determined by the ATPC algorithm
before it was disabled. It will change to the value configured for the Initial
Transmit Power parameter only after the next reset.
The default is Enable.
Acknowledge Time Out
The Acknowledge Time Out parameter enables augmenting the range of the
system by increasing the time that the unit can wait for a response. This
includes several scenarios where the unit expects a response, such as a
handshake during the association process, an acknowledgement after
transmitting a data frame and CTS after RTS. Increasing the range may
decrease the overall performance and achievable network throughput. It
should be increased only to support ranges of over 10Km. To support a
link distance higher than 10Km, the delay should be increased at both the
applicable SU and the AU.
The Acknowledge Time Out is defined in Clock Cycles, where each Clock
Cycle equals 25 nano-seconds.
The valid range is from 256 (6.4 milliseconds) to 8191(205 milliseconds)
BreezeACCESS VL System Manual